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-rw-r--r--net/ieee80211/softmac/ieee80211softmac_auth.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/net/ieee80211/softmac/ieee80211softmac_auth.c b/net/ieee80211/softmac/ieee80211softmac_auth.c
index 95e5287e12b..0612015f1c7 100644
--- a/net/ieee80211/softmac/ieee80211softmac_auth.c
+++ b/net/ieee80211/softmac/ieee80211softmac_auth.c
@@ -216,10 +216,16 @@ ieee80211softmac_auth_resp(struct net_device *dev, struct ieee80211_auth *auth)
net->challenge_len = *data++;
if (net->challenge_len > WLAN_AUTH_CHALLENGE_LEN)
net->challenge_len = WLAN_AUTH_CHALLENGE_LEN;
- if (net->challenge != NULL)
- kfree(net->challenge);
- net->challenge = kmalloc(net->challenge_len, GFP_ATOMIC);
- memcpy(net->challenge, data, net->challenge_len);
+ kfree(net->challenge);
+ net->challenge = kmemdup(data, net->challenge_len,
+ GFP_ATOMIC);
+ if (net->challenge == NULL) {
+ printkl(KERN_NOTICE PFX "Shared Key "
+ "Authentication failed due to "
+ "memory shortage.\n");
+ spin_unlock_irqrestore(&mac->lock, flags);
+ break;
+ }
aq->state = IEEE80211SOFTMAC_AUTH_SHARED_RESPONSE;
/* We reuse the work struct from the auth request here.